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authorFelix Fietkau <nbd@openwrt.org>2010-10-03 16:57:25 +0000
committerFelix Fietkau <nbd@openwrt.org>2010-10-03 16:57:25 +0000
commit0c99eb502318c4349fbe8e326a90281256344944 (patch)
tree16096601b6b36230a7e487c06516d940b76cae4b /package/mac80211
parentcf323eb924bf6a5b45e136f7afef91078d5b070d (diff)
downloadupstream-0c99eb502318c4349fbe8e326a90281256344944.tar.gz
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ath9k: add a few fixes and cleanups
SVN-Revision: 23198
Diffstat (limited to 'package/mac80211')
-rw-r--r--package/mac80211/patches/530-ath9k_remove_calinitdata.patch75
-rw-r--r--package/mac80211/patches/531-ath9k_cal_cleanup.patch248
-rw-r--r--package/mac80211/patches/540-ath9k_cycle_counters_cleanup.patch282
-rw-r--r--package/mac80211/patches/550-ath9k_cleanup_regwrite_buffer.patch410
-rw-r--r--package/mac80211/patches/551-ath9k_ani_helper.patch32
-rw-r--r--package/mac80211/patches/552-ath9k_fix_ani_listen_time.patch11
6 files changed, 1058 insertions, 0 deletions
diff --git a/package/mac80211/patches/530-ath9k_remove_calinitdata.patch b/package/mac80211/patches/530-ath9k_remove_calinitdata.patch
new file mode 100644
index 0000000000..78425e1dc2
--- /dev/null
+++ b/package/mac80211/patches/530-ath9k_remove_calinitdata.patch
@@ -0,0 +1,75 @@
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -45,11 +45,6 @@ static void ar9002_hw_setup_calibration(
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "starting ADC DC Calibration\n");
+ break;
+- case ADC_DC_INIT_CAL:
+- REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_DC_INIT);
+- ath_print(common, ATH_DBG_CALIBRATE,
+- "starting Init ADC DC Calibration\n");
+- break;
+ case TEMP_COMP_CAL:
+ break; /* Not supported */
+ }
+@@ -950,13 +945,6 @@ static const struct ath9k_percal_data ad
+ ar9002_hw_adc_dccal_collect,
+ ar9002_hw_adc_dccal_calibrate
+ };
+-static const struct ath9k_percal_data adc_init_dc_cal = {
+- ADC_DC_INIT_CAL,
+- MIN_CAL_SAMPLES,
+- INIT_LOG_COUNT,
+- ar9002_hw_adc_dccal_collect,
+- ar9002_hw_adc_dccal_calibrate
+-};
+
+ static void ar9002_hw_init_cal_settings(struct ath_hw *ah)
+ {
+@@ -973,16 +961,12 @@ static void ar9002_hw_init_cal_settings(
+ &adc_gain_cal_single_sample;
+ ah->adcdc_caldata.calData =
+ &adc_dc_cal_single_sample;
+- ah->adcdc_calinitdata.calData =
+- &adc_init_dc_cal;
+ } else {
+ ah->iq_caldata.calData = &iq_cal_multi_sample;
+ ah->adcgain_caldata.calData =
+ &adc_gain_cal_multi_sample;
+ ah->adcdc_caldata.calData =
+ &adc_dc_cal_multi_sample;
+- ah->adcdc_calinitdata.calData =
+- &adc_init_dc_cal;
+ }
+ ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
+ }
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -50,7 +50,6 @@ static void ar9003_hw_setup_calibration(
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "starting Temperature Compensation Calibration\n");
+ break;
+- case ADC_DC_INIT_CAL:
+ case ADC_GAIN_CAL:
+ case ADC_DC_CAL:
+ /* Not yet */
+--- a/drivers/net/wireless/ath/ath9k/calib.h
++++ b/drivers/net/wireless/ath/ath9k/calib.h
+@@ -59,7 +59,6 @@ struct ar5416IniArray {
+ } while (0)
+
+ enum ath9k_cal_types {
+- ADC_DC_INIT_CAL = 0x1,
+ ADC_GAIN_CAL = 0x2,
+ ADC_DC_CAL = 0x4,
+ IQ_MISMATCH_CAL = 0x8,
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -692,7 +692,6 @@ struct ath_hw {
+ enum ath9k_cal_types supp_cals;
+ struct ath9k_cal_list iq_caldata;
+ struct ath9k_cal_list adcgain_caldata;
+- struct ath9k_cal_list adcdc_calinitdata;
+ struct ath9k_cal_list adcdc_caldata;
+ struct ath9k_cal_list tempCompCalData;
+ struct ath9k_cal_list *cal_list;
diff --git a/package/mac80211/patches/531-ath9k_cal_cleanup.patch b/package/mac80211/patches/531-ath9k_cal_cleanup.patch
new file mode 100644
index 0000000000..3a14d52894
--- /dev/null
+++ b/package/mac80211/patches/531-ath9k_cal_cleanup.patch
@@ -0,0 +1,248 @@
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -535,8 +535,6 @@ struct ath_hw_private_ops {
+ bool (*macversion_supported)(u32 macversion);
+ void (*setup_calibration)(struct ath_hw *ah,
+ struct ath9k_cal_list *currCal);
+- bool (*iscal_supported)(struct ath_hw *ah,
+- enum ath9k_cal_types calType);
+
+ /* PHY ops */
+ int (*rf_set_freq)(struct ath_hw *ah,
+@@ -689,7 +687,7 @@ struct ath_hw {
+ u32 atim_window;
+
+ /* Calibration */
+- enum ath9k_cal_types supp_cals;
++ u32 supp_cals;
+ struct ath9k_cal_list iq_caldata;
+ struct ath9k_cal_list adcgain_caldata;
+ struct ath9k_cal_list adcdc_caldata;
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -20,6 +20,13 @@
+
+ #define AR9285_CLCAL_REDO_THRESH 1
+
++enum ar9002_cal_types {
++ ADC_GAIN_CAL = BIT(0),
++ ADC_DC_CAL = BIT(1),
++ IQ_MISMATCH_CAL = BIT(2),
++};
++
++
+ static void ar9002_hw_setup_calibration(struct ath_hw *ah,
+ struct ath9k_cal_list *currCal)
+ {
+@@ -45,8 +52,6 @@ static void ar9002_hw_setup_calibration(
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "starting ADC DC Calibration\n");
+ break;
+- case TEMP_COMP_CAL:
+- break; /* Not supported */
+ }
+
+ REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0),
+@@ -91,25 +96,6 @@ static bool ar9002_hw_per_calibration(st
+ return iscaldone;
+ }
+
+-/* Assumes you are talking about the currently configured channel */
+-static bool ar9002_hw_iscal_supported(struct ath_hw *ah,
+- enum ath9k_cal_types calType)
+-{
+- struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
+-
+- switch (calType & ah->supp_cals) {
+- case IQ_MISMATCH_CAL: /* Both 2 GHz and 5 GHz support OFDM */
+- return true;
+- case ADC_GAIN_CAL:
+- case ADC_DC_CAL:
+- if (!(conf->channel->band == IEEE80211_BAND_2GHZ &&
+- conf_is_ht20(conf)))
+- return true;
+- break;
+- }
+- return false;
+-}
+-
+ static void ar9002_hw_iqcal_collect(struct ath_hw *ah)
+ {
+ int i;
+@@ -872,24 +858,28 @@ static bool ar9002_hw_init_cal(struct at
+
+ /* Enable IQ, ADC Gain and ADC DC offset CALs */
+ if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah)) {
+- if (ar9002_hw_iscal_supported(ah, ADC_GAIN_CAL)) {
++ ah->supp_cals = IQ_MISMATCH_CAL;
++
++ if (AR_SREV_9160_10_OR_LATER(ah) &&
++ !(IS_CHAN_2GHZ(chan) && IS_CHAN_HT20(chan))) {
++ ah->supp_cals |= ADC_GAIN_CAL | ADC_DC_CAL;
++
++
+ INIT_CAL(&ah->adcgain_caldata);
+ INSERT_CAL(ah, &ah->adcgain_caldata);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "enabling ADC Gain Calibration.\n");
+- }
+- if (ar9002_hw_iscal_supported(ah, ADC_DC_CAL)) {
++
+ INIT_CAL(&ah->adcdc_caldata);
+ INSERT_CAL(ah, &ah->adcdc_caldata);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "enabling ADC DC Calibration.\n");
+ }
+- if (ar9002_hw_iscal_supported(ah, IQ_MISMATCH_CAL)) {
+- INIT_CAL(&ah->iq_caldata);
+- INSERT_CAL(ah, &ah->iq_caldata);
+- ath_print(common, ATH_DBG_CALIBRATE,
+- "enabling IQ Calibration.\n");
+- }
++
++ INIT_CAL(&ah->iq_caldata);
++ INSERT_CAL(ah, &ah->iq_caldata);
++ ath_print(common, ATH_DBG_CALIBRATE,
++ "enabling IQ Calibration.\n");
+
+ ah->cal_list_curr = ah->cal_list;
+
+@@ -980,7 +970,6 @@ void ar9002_hw_attach_calib_ops(struct a
+ priv_ops->init_cal_settings = ar9002_hw_init_cal_settings;
+ priv_ops->init_cal = ar9002_hw_init_cal;
+ priv_ops->setup_calibration = ar9002_hw_setup_calibration;
+- priv_ops->iscal_supported = ar9002_hw_iscal_supported;
+
+ ops->calibrate = ar9002_hw_calibrate;
+ }
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -18,6 +18,11 @@
+ #include "hw-ops.h"
+ #include "ar9003_phy.h"
+
++enum ar9003_cal_types {
++ IQ_MISMATCH_CAL = BIT(0),
++ TEMP_COMP_CAL = BIT(1),
++};
++
+ static void ar9003_hw_setup_calibration(struct ath_hw *ah,
+ struct ath9k_cal_list *currCal)
+ {
+@@ -50,10 +55,6 @@ static void ar9003_hw_setup_calibration(
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "starting Temperature Compensation Calibration\n");
+ break;
+- case ADC_GAIN_CAL:
+- case ADC_DC_CAL:
+- /* Not yet */
+- break;
+ }
+ }
+
+@@ -313,27 +314,6 @@ static const struct ath9k_percal_data iq
+ static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
+ {
+ ah->iq_caldata.calData = &iq_cal_single_sample;
+- ah->supp_cals = IQ_MISMATCH_CAL;
+-}
+-
+-static bool ar9003_hw_iscal_supported(struct ath_hw *ah,
+- enum ath9k_cal_types calType)
+-{
+- switch (calType & ah->supp_cals) {
+- case IQ_MISMATCH_CAL:
+- /*
+- * XXX: Run IQ Mismatch for non-CCK only
+- * Note that CHANNEL_B is never set though.
+- */
+- return true;
+- case ADC_GAIN_CAL:
+- case ADC_DC_CAL:
+- return false;
+- case TEMP_COMP_CAL:
+- return true;
+- }
+-
+- return false;
+ }
+
+ /*
+@@ -772,15 +752,16 @@ static bool ar9003_hw_init_cal(struct at
+
+ /* Initialize list pointers */
+ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
++ ah->supp_cals = IQ_MISMATCH_CAL;
+
+- if (ar9003_hw_iscal_supported(ah, IQ_MISMATCH_CAL)) {
++ if (ah->supp_cals & IQ_MISMATCH_CAL) {
+ INIT_CAL(&ah->iq_caldata);
+ INSERT_CAL(ah, &ah->iq_caldata);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "enabling IQ Calibration.\n");
+ }
+
+- if (ar9003_hw_iscal_supported(ah, TEMP_COMP_CAL)) {
++ if (ah->supp_cals & TEMP_COMP_CAL) {
+ INIT_CAL(&ah->tempCompCalData);
+ INSERT_CAL(ah, &ah->tempCompCalData);
+ ath_print(common, ATH_DBG_CALIBRATE,
+@@ -807,7 +788,6 @@ void ar9003_hw_attach_calib_ops(struct a
+ priv_ops->init_cal_settings = ar9003_hw_init_cal_settings;
+ priv_ops->init_cal = ar9003_hw_init_cal;
+ priv_ops->setup_calibration = ar9003_hw_setup_calibration;
+- priv_ops->iscal_supported = ar9003_hw_iscal_supported;
+
+ ops->calibrate = ar9003_hw_calibrate;
+ }
+--- a/drivers/net/wireless/ath/ath9k/calib.h
++++ b/drivers/net/wireless/ath/ath9k/calib.h
+@@ -58,13 +58,6 @@ struct ar5416IniArray {
+ } \
+ } while (0)
+
+-enum ath9k_cal_types {
+- ADC_GAIN_CAL = 0x2,
+- ADC_DC_CAL = 0x4,
+- IQ_MISMATCH_CAL = 0x8,
+- TEMP_COMP_CAL = 0x10,
+-};
+-
+ enum ath9k_cal_state {
+ CAL_INACTIVE,
+ CAL_WAITING,
+@@ -79,7 +72,7 @@ enum ath9k_cal_state {
+ #define PER_MAX_LOG_COUNT 10
+
+ struct ath9k_percal_data {
+- enum ath9k_cal_types calType;
++ u32 calType;
+ u32 calNumSamples;
+ u32 calCountMax;
+ void (*calCollect) (struct ath_hw *);
+--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
++++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
+@@ -276,12 +276,6 @@ static inline void ath9k_hw_setup_calibr
+ ath9k_hw_private_ops(ah)->setup_calibration(ah, currCal);
+ }
+
+-static inline bool ath9k_hw_iscal_supported(struct ath_hw *ah,
+- enum ath9k_cal_types calType)
+-{
+- return ath9k_hw_private_ops(ah)->iscal_supported(ah, calType);
+-}
+-
+ static inline void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
+ {
+ ath9k_hw_private_ops(ah)->ani_reset(ah, is_scanning);
+--- a/drivers/net/wireless/ath/ath9k/calib.c
++++ b/drivers/net/wireless/ath/ath9k/calib.c
+@@ -186,7 +186,7 @@ bool ath9k_hw_reset_calvalid(struct ath_
+ return true;
+ }
+
+- if (!ath9k_hw_iscal_supported(ah, currCal->calData->calType))
++ if (!(ah->supp_cals & currCal->calData->calType))
+ return true;
+
+ ath_print(common, ATH_DBG_CALIBRATE,
diff --git a/package/mac80211/patches/540-ath9k_cycle_counters_cleanup.patch b/package/mac80211/patches/540-ath9k_cycle_counters_cleanup.patch
new file mode 100644
index 0000000000..89af14691b
--- /dev/null
+++ b/package/mac80211/patches/540-ath9k_cycle_counters_cleanup.patch
@@ -0,0 +1,282 @@
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -765,6 +765,8 @@ struct ath_hw {
+ int coarse_low[5];
+ int firpwr[5];
+ enum ath9k_ani_cmd ani_function;
++ struct ath_cycle_counters cc, cc_delta;
++ int32_t listen_time;
+
+ /* Bluetooth coexistance */
+ struct ath_btcoex_hw btcoex_hw;
+--- a/drivers/net/wireless/ath/ath9k/ani.c
++++ b/drivers/net/wireless/ath/ath9k/ani.c
+@@ -549,47 +549,15 @@ static u8 ath9k_hw_chan_2_clockrate_mhz(
+
+ static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah)
+ {
+- struct ar5416AniState *aniState;
+- struct ath_common *common = ath9k_hw_common(ah);
+- u32 txFrameCount, rxFrameCount, cycleCount;
+- int32_t listenTime;
+-
+- txFrameCount = REG_READ(ah, AR_TFCNT);
+- rxFrameCount = REG_READ(ah, AR_RFCNT);
+- cycleCount = REG_READ(ah, AR_CCCNT);
+-
+- aniState = ah->curani;
+- if (aniState->cycleCount == 0 || aniState->cycleCount > cycleCount) {
+- listenTime = 0;
+- ah->stats.ast_ani_lzero++;
+- ath_print(common, ATH_DBG_ANI,
+- "1st call: aniState->cycleCount=%d\n",
+- aniState->cycleCount);
+- } else {
+- int32_t ccdelta = cycleCount - aniState->cycleCount;
+- int32_t rfdelta = rxFrameCount - aniState->rxFrameCount;
+- int32_t tfdelta = txFrameCount - aniState->txFrameCount;
+- int32_t clock_rate;
+-
+- /*
+- * convert HW counter values to ms using mode
+- * specifix clock rate
+- */
+- clock_rate = ath9k_hw_chan_2_clockrate_mhz(ah) * 1000;;
++ int32_t listen_time;
++ int32_t clock_rate;
+
+- listenTime = (ccdelta - rfdelta - tfdelta) / clock_rate;
++ ath9k_hw_update_cycle_counters(ah);
++ clock_rate = ath9k_hw_chan_2_clockrate_mhz(ah) * 1000;
++ listen_time = ah->listen_time / clock_rate;
++ ah->listen_time = 0;
+
+- ath_print(common, ATH_DBG_ANI,
+- "cyclecount=%d, rfcount=%d, "
+- "tfcount=%d, listenTime=%d CLOCK_RATE=%d\n",
+- ccdelta, rfdelta, tfdelta, listenTime, clock_rate);
+- }
+-
+- aniState->cycleCount = cycleCount;
+- aniState->txFrameCount = txFrameCount;
+- aniState->rxFrameCount = rxFrameCount;
+-
+- return listenTime;
++ return listen_time;
+ }
+
+ static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning)
+@@ -1041,45 +1009,52 @@ void ath9k_hw_disable_mib_counters(struc
+ }
+ EXPORT_SYMBOL(ath9k_hw_disable_mib_counters);
+
+-u32 ath9k_hw_GetMibCycleCountsPct(struct ath_hw *ah,
+- u32 *rxc_pcnt,
+- u32 *rxf_pcnt,
+- u32 *txf_pcnt)
++void ath9k_hw_update_cycle_counters(struct ath_hw *ah)
+ {
+- struct ath_common *common = ath9k_hw_common(ah);
+- static u32 cycles, rx_clear, rx_frame, tx_frame;
+- u32 good = 1;
++ struct ath_cycle_counters cc;
++ bool clear;
+
+- u32 rc = REG_READ(ah, AR_RCCNT);
+- u32 rf = REG_READ(ah, AR_RFCNT);
+- u32 tf = REG_READ(ah, AR_TFCNT);
+- u32 cc = REG_READ(ah, AR_CCCNT);
++ memcpy(&cc, &ah->cc, sizeof(cc));
+
+- if (cycles == 0 || cycles > cc) {
+- ath_print(common, ATH_DBG_ANI,
+- "cycle counter wrap. ExtBusy = 0\n");
+- good = 0;
+- } else {
+- u32 cc_d = cc - cycles;
+- u32 rc_d = rc - rx_clear;
+- u32 rf_d = rf - rx_frame;
+- u32 tf_d = tf - tx_frame;
+-
+- if (cc_d != 0) {
+- *rxc_pcnt = rc_d * 100 / cc_d;
+- *rxf_pcnt = rf_d * 100 / cc_d;
+- *txf_pcnt = tf_d * 100 / cc_d;
+- } else {
+- good = 0;
+- }
+- }
++ /* freeze counters */
++ REG_WRITE(ah, AR_MIBC, AR_MIBC_FMC);
+
+- cycles = cc;
+- rx_frame = rf;
+- rx_clear = rc;
+- tx_frame = tf;
++ ah->cc.cycles = REG_READ(ah, AR_CCCNT);
++ if (ah->cc.cycles < cc.cycles) {
++ clear = true;
++ goto skip;
++ }
++
++ ah->cc.rx_clear = REG_READ(ah, AR_RCCNT);
++ ah->cc.rx_frame = REG_READ(ah, AR_RFCNT);
++ ah->cc.tx_frame = REG_READ(ah, AR_TFCNT);
++
++ /* prevent wraparound */
++ if (ah->cc.cycles & BIT(31))
++ clear = true;
++
++#define CC_DELTA(_field, _reg) ah->cc_delta._field += ah->cc._field - cc._field
++ CC_DELTA(cycles, AR_CCCNT);
++ CC_DELTA(rx_frame, AR_RFCNT);
++ CC_DELTA(rx_clear, AR_RCCNT);
++ CC_DELTA(tx_frame, AR_TFCNT);
++#undef CC_DELTA
++
++ ah->listen_time += (ah->cc.cycles - cc.cycles) -
++ ((ah->cc.rx_frame - cc.rx_frame) +
++ (ah->cc.tx_frame - cc.tx_frame));
++
++skip:
++ if (clear) {
++ REG_WRITE(ah, AR_CCCNT, 0);
++ REG_WRITE(ah, AR_RFCNT, 0);
++ REG_WRITE(ah, AR_RCCNT, 0);
++ REG_WRITE(ah, AR_TFCNT, 0);
++ memset(&ah->cc, 0, sizeof(ah->cc));
++ }
+
+- return good;
++ /* unfreeze counters */
++ REG_WRITE(ah, AR_MIBC, 0);
+ }
+
+ /*
+--- a/drivers/net/wireless/ath/ath9k/ani.h
++++ b/drivers/net/wireless/ath/ath9k/ani.h
+@@ -93,6 +93,13 @@ struct ath9k_mib_stats {
+ u32 beacons;
+ };
+
++struct ath_cycle_counters {
++ u32 cycles;
++ u32 rx_frame;
++ u32 rx_clear;
++ u32 tx_frame;
++};
++
+ /* INI default values for ANI registers */
+ struct ath9k_ani_default {
+ u16 m1ThreshLow;
+@@ -130,9 +137,6 @@ struct ar5416AniState {
+ int32_t rssiThrLow;
+ int32_t rssiThrHigh;
+ u32 noiseFloor;
+- u32 txFrameCount;
+- u32 rxFrameCount;
+- u32 cycleCount;
+ u32 ofdmPhyErrCount;
+ u32 cckPhyErrCount;
+ u32 ofdmPhyErrBase;
+@@ -166,8 +170,7 @@ struct ar5416Stats {
+
+ void ath9k_enable_mib_counters(struct ath_hw *ah);
+ void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
+-u32 ath9k_hw_GetMibCycleCountsPct(struct ath_hw *ah, u32 *rxc_pcnt,
+- u32 *rxf_pcnt, u32 *txf_pcnt);
++void ath9k_hw_update_cycle_counters(struct ath_hw *ah);
+ void ath9k_hw_ani_setup(struct ath_hw *ah);
+ void ath9k_hw_ani_init(struct ath_hw *ah);
+ int ath9k_hw_get_ani_channel_idx(struct ath_hw *ah,
+--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+@@ -1227,8 +1227,7 @@ static bool ar5008_hw_ani_control_old(st
+ aniState->firstepLevel,
+ aniState->listenTime);
+ ath_print(common, ATH_DBG_ANI,
+- "cycleCount=%d, ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
+- aniState->cycleCount,
++ "ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
+ aniState->ofdmPhyErrCount,
+ aniState->cckPhyErrCount);
+
+@@ -1480,15 +1479,13 @@ static bool ar5008_hw_ani_control_new(st
+
+ ath_print(common, ATH_DBG_ANI,
+ "ANI parameters: SI=%d, ofdmWS=%s FS=%d "
+- "MRCcck=%s listenTime=%d CC=%d listen=%d "
++ "MRCcck=%s listenTime=%d "
+ "ofdmErrs=%d cckErrs=%d\n",
+ aniState->spurImmunityLevel,
+ !aniState->ofdmWeakSigDetectOff ? "on" : "off",
+ aniState->firstepLevel,
+ !aniState->mrcCCKOff ? "on" : "off",
+ aniState->listenTime,
+- aniState->cycleCount,
+- aniState->listenTime,
+ aniState->ofdmPhyErrCount,
+ aniState->cckPhyErrCount);
+ return true;
+@@ -1581,8 +1578,6 @@ static void ar5008_hw_ani_cache_ini_regs
+ aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
+ aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
+ aniState->mrcCCKOff = true; /* not available on pre AR9003 */
+-
+- aniState->cycleCount = 0;
+ }
+
+ static void ar5008_hw_set_nf_limits(struct ath_hw *ah)
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+@@ -1005,15 +1005,13 @@ static bool ar9003_hw_ani_control(struct
+
+ ath_print(common, ATH_DBG_ANI,
+ "ANI parameters: SI=%d, ofdmWS=%s FS=%d "
+- "MRCcck=%s listenTime=%d CC=%d listen=%d "
++ "MRCcck=%s listenTime=%d "
+ "ofdmErrs=%d cckErrs=%d\n",
+ aniState->spurImmunityLevel,
+ !aniState->ofdmWeakSigDetectOff ? "on" : "off",
+ aniState->firstepLevel,
+ !aniState->mrcCCKOff ? "on" : "off",
+ aniState->listenTime,
+- aniState->cycleCount,
+- aniState->listenTime,
+ aniState->ofdmPhyErrCount,
+ aniState->cckPhyErrCount);
+ return true;
+@@ -1116,8 +1114,6 @@ static void ar9003_hw_ani_cache_ini_regs
+ aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
+ aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
+ aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK;
+-
+- aniState->cycleCount = 0;
+ }
+
+ void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
+@@ -1232,7 +1228,7 @@ void ar9003_hw_bb_watchdog_read(struct a
+ void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
+ {
+ struct ath_common *common = ath9k_hw_common(ah);
+- u32 rxc_pcnt = 0, rxf_pcnt = 0, txf_pcnt = 0, status;
++ u32 status;
+
+ if (likely(!(common->debug_mask & ATH_DBG_RESET)))
+ return;
+@@ -1261,11 +1257,13 @@ void ar9003_hw_bb_watchdog_dbg_info(stru
+ "** BB mode: BB_gen_controls=0x%08x **\n",
+ REG_READ(ah, AR_PHY_GEN_CTRL));
+
+- if (ath9k_hw_GetMibCycleCountsPct(ah, &rxc_pcnt, &rxf_pcnt, &txf_pcnt))
++ ath9k_hw_update_cycle_counters(ah);
++#define PCT(_field) (ah->cc_delta._field * 100 / ah->cc_delta.cycles)
++ if (ah->cc_delta.cycles)
+ ath_print(common, ATH_DBG_RESET,
+ "** BB busy times: rx_clear=%d%%, "
+ "rx_frame=%d%%, tx_frame=%d%% **\n",
+- rxc_pcnt, rxf_pcnt, txf_pcnt);
++ PCT(rx_clear), PCT(rx_frame), PCT(tx_frame));
+
+ ath_print(common, ATH_DBG_RESET,
+ "==== BB update: done ====\n\n");
diff --git a/package/mac80211/patches/550-ath9k_cleanup_regwrite_buffer.patch b/package/mac80211/patches/550-ath9k_cleanup_regwrite_buffer.patch
new file mode 100644
index 0000000000..a0ef55562b
--- /dev/null
+++ b/package/mac80211/patches/550-ath9k_cleanup_regwrite_buffer.patch
@@ -0,0 +1,410 @@
+--- a/drivers/net/wireless/ath/ath.h
++++ b/drivers/net/wireless/ath/ath.h
+@@ -102,14 +102,12 @@ enum ath_cipher {
+ * @read: Register read
+ * @write: Register write
+ * @enable_write_buffer: Enable multiple register writes
+- * @disable_write_buffer: Disable multiple register writes
+- * @write_flush: Flush buffered register writes
++ * @write_flush: flush buffered register writes and disable buffering
+ */
+ struct ath_ops {
+ unsigned int (*read)(void *, u32 reg_offset);
+ void (*write)(void *, u32 val, u32 reg_offset);
+ void (*enable_write_buffer)(void *);
+- void (*disable_write_buffer)(void *);
+ void (*write_flush) (void *);
+ };
+
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+@@ -380,15 +380,6 @@ static void ath9k_enable_regwrite_buffer
+ atomic_inc(&priv->wmi->mwrite_cnt);
+ }
+
+-static void ath9k_disable_regwrite_buffer(void *hw_priv)
+-{
+- struct ath_hw *ah = (struct ath_hw *) hw_priv;
+- struct ath_common *common = ath9k_hw_common(ah);
+- struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
+-
+- atomic_dec(&priv->wmi->mwrite_cnt);
+-}
+-
+ static void ath9k_regwrite_flush(void *hw_priv)
+ {
+ struct ath_hw *ah = (struct ath_hw *) hw_priv;
+@@ -397,6 +388,9 @@ static void ath9k_regwrite_flush(void *h
+ u32 rsp_status;
+ int r;
+
++ if (!atomic_dec_and_test(&priv->wmi->mwrite_cnt))
++ return;
++
+ mutex_lock(&priv->wmi->multi_write_mutex);
+
+ if (priv->wmi->multi_write_idx) {
+@@ -420,7 +414,6 @@ static const struct ath_ops ath9k_common
+ .read = ath9k_regread,
+ .write = ath9k_regwrite,
+ .enable_write_buffer = ath9k_enable_regwrite_buffer,
+- .disable_write_buffer = ath9k_disable_regwrite_buffer,
+ .write_flush = ath9k_regwrite_flush,
+ };
+
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -70,19 +70,13 @@
+
+ #define ENABLE_REGWRITE_BUFFER(_ah) \
+ do { \
+- if (AR_SREV_9271(_ah)) \
++ if (ath9k_hw_common(_ah)->ops->enable_write_buffer) \
+ ath9k_hw_common(_ah)->ops->enable_write_buffer((_ah)); \
+ } while (0)
+
+-#define DISABLE_REGWRITE_BUFFER(_ah) \
+- do { \
+- if (AR_SREV_9271(_ah)) \
+- ath9k_hw_common(_ah)->ops->disable_write_buffer((_ah)); \
+- } while (0)
+-
+ #define REGWRITE_BUFFER_FLUSH(_ah) \
+ do { \
+- if (AR_SREV_9271(_ah)) \
++ if (ath9k_hw_common(_ah)->ops->write_flush) \
+ ath9k_hw_common(_ah)->ops->write_flush((_ah)); \
+ } while (0)
+
+--- a/drivers/net/wireless/ath/ath9k/ani.c
++++ b/drivers/net/wireless/ath/ath9k/ani.c
+@@ -180,7 +180,6 @@ static void ath9k_ani_restart_old(struct
+ REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
+
+@@ -215,7 +214,6 @@ static void ath9k_ani_restart_new(struct
+ REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
+
+@@ -643,7 +641,6 @@ static void ath9k_ani_reset_old(struct a
+ REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ /*
+@@ -737,7 +734,6 @@ static void ath9k_ani_reset_new(struct a
+ REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
+@@ -991,7 +987,6 @@ void ath9k_enable_mib_counters(struct at
+ REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ /* Freeze the MIB counters, get the stats and then clear them */
+@@ -1261,7 +1256,6 @@ void ath9k_hw_ani_init(struct ath_hw *ah
+ REG_WRITE(ah, AR_PHY_ERR_2, ah->ani[0].cckPhyErrBase);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ ath9k_enable_mib_counters(ah);
+
+--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+@@ -615,14 +615,11 @@ static void ar5008_hw_init_chain_masks(s
+ rx_chainmask = ah->rxchainmask;
+ tx_chainmask = ah->txchainmask;
+
+- ENABLE_REGWRITE_BUFFER(ah);
+
+ switch (rx_chainmask) {
+ case 0x5:
+- DISABLE_REGWRITE_BUFFER(ah);
+ REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
+ AR_PHY_SWAP_ALT_CHAIN);
+- ENABLE_REGWRITE_BUFFER(ah);
+ case 0x3:
+ if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
+ REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
+@@ -632,17 +629,18 @@ static void ar5008_hw_init_chain_masks(s
+ case 0x1:
+ case 0x2:
+ case 0x7:
++ ENABLE_REGWRITE_BUFFER(ah);
+ REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
+ REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
+ break;
+ default:
++ ENABLE_REGWRITE_BUFFER(ah);
+ break;
+ }
+
+ REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (tx_chainmask == 0x5) {
+ REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
+@@ -728,7 +726,6 @@ static void ar5008_hw_set_channel_regs(s
+ REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+
+@@ -820,7 +817,6 @@ static int ar5008_hw_process_ini(struct
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9280(ah) || AR_SREV_9287_11_OR_LATER(ah))
+ REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
+@@ -851,7 +847,6 @@ static int ar5008_hw_process_ini(struct
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9271(ah)) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -522,7 +522,6 @@ static void ar9271_hw_pa_cal(struct ath_
+ REG_WRITE(ah, regList[i][0], regList[i][1]);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ static inline void ar9285_hw_pa_cal(struct ath_hw *ah, bool is_reset)
+--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+@@ -371,7 +371,6 @@ static void ar9002_hw_configpcipowersave
+ REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ udelay(1000);
+@@ -468,7 +467,6 @@ static int ar9002_hw_get_radiorev(struct
+ REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
+ val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
+@@ -627,6 +625,4 @@ void ar9002_hw_load_ani_reg(struct ath_h
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+-
+ }
+--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+@@ -415,7 +415,6 @@ static void ar9002_hw_spur_mitigate(stru
+ REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ static void ar9002_olc_init(struct ath_hw *ah)
+--- a/drivers/net/wireless/ath/ath9k/calib.c
++++ b/drivers/net/wireless/ath/ath9k/calib.c
+@@ -300,7 +300,6 @@ void ath9k_hw_loadnf(struct ath_hw *ah,
+ }
+ }
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+
+--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
++++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+@@ -500,7 +500,6 @@ static void ath9k_hw_set_4k_power_cal_ta
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+ }
+
+@@ -832,7 +831,6 @@ static void ath9k_hw_4k_set_txpower(stru
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ static void ath9k_hw_4k_set_addac(struct ath_hw *ah,
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -302,7 +302,6 @@ static void ath9k_hw_disablepcie(struct
+ REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ /* This should work for all families including legacy */
+@@ -688,7 +687,6 @@ static void ath9k_hw_init_qos(struct ath
+ REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ static void ath9k_hw_init_pll(struct ath_hw *ah,
+@@ -753,7 +751,6 @@ static void ath9k_hw_init_interrupt_mask
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
+@@ -897,7 +894,6 @@ static inline void ath9k_hw_set_dma(stru
+ REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ /*
+ * Restore TX Trigger Level to its pre-reset value.
+@@ -945,7 +941,6 @@ static inline void ath9k_hw_set_dma(stru
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ ath9k_hw_reset_txstatus_ring(ah);
+@@ -1043,7 +1038,6 @@ static bool ath9k_hw_set_reset(struct at
+ REG_WRITE(ah, AR_RTC_RC, rst_flags);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ udelay(50);
+
+@@ -1082,7 +1076,6 @@ static bool ath9k_hw_set_reset_power_on(
+ udelay(2);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ udelay(2);
+@@ -1386,7 +1379,6 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+ REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ r = ath9k_hw_rf_set_freq(ah, chan);
+ if (r)
+@@ -1398,7 +1390,6 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+ REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ ah->intr_txqs = 0;
+ for (i = 0; i < ah->caps.total_queues; i++)
+@@ -1446,7 +1437,6 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+ REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ /*
+ * For big endian systems turn on swapping for descriptors
+@@ -1696,7 +1686,6 @@ void ath9k_hw_beaconinit(struct ath_hw *
+ REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ beacon_period &= ~ATH9K_BEACON_ENA;
+ if (beacon_period & ATH9K_BEACON_RESET_TSF) {
+@@ -1724,7 +1713,6 @@ void ath9k_hw_set_sta_beacon_timers(stru
+ TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ REG_RMW_FIELD(ah, AR_RSSI_THR,
+ AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
+@@ -1770,7 +1758,6 @@ void ath9k_hw_set_sta_beacon_timers(stru
+ REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ REG_SET_BIT(ah, AR_TIMER_MODE,
+ AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
+@@ -2188,7 +2175,6 @@ void ath9k_hw_setrxfilter(struct ath_hw
+ REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+ EXPORT_SYMBOL(ath9k_hw_setrxfilter);
+
+--- a/drivers/net/wireless/ath/ath9k/mac.c
++++ b/drivers/net/wireless/ath/ath9k/mac.c
+@@ -40,7 +40,6 @@ static void ath9k_hw_set_txq_interrupts(
+ REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+ }
+
+ u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q)
+@@ -530,7 +529,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
+ REG_WRITE(ah, AR_DMISC(q),
+@@ -553,7 +551,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw
+ | AR_D_MISC_POST_FR_BKOFF_DIS);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ /*
+ * cwmin and cwmax should be 0 for beacon queue
+@@ -585,7 +582,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw
+ AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
+
+ REGWRITE_BUFFER_FLUSH(ah);
+- DISABLE_REGWRITE_BUFFER(ah);
+
+ break;
+ case ATH9K_TX_QUEUE_PSPOLL:
diff --git a/package/mac80211/patches/551-ath9k_ani_helper.patch b/package/mac80211/patches/551-ath9k_ani_helper.patch
new file mode 100644
index 0000000000..dfd85f237c
--- /dev/null
+++ b/package/mac80211/patches/551-ath9k_ani_helper.patch
@@ -0,0 +1,32 @@
+--- a/drivers/net/wireless/ath/ath9k/ani.c
++++ b/drivers/net/wireless/ath/ath9k/ani.c
+@@ -109,6 +109,11 @@ static void ath9k_hw_ani_lower_immunity(
+ ath9k_hw_private_ops(ah)->ani_lower_immunity(ah);
+ }
+
++static bool use_new_ani(struct ath_hw *ah)
++{
++ return AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani;
++}
++
+ int ath9k_hw_get_ani_channel_idx(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+ {
+@@ -1178,7 +1183,7 @@ void ath9k_hw_ani_init(struct ath_hw *ah
+
+ memset(ah->ani, 0, sizeof(ah->ani));
+ for (i = 0; i < ARRAY_SIZE(ah->ani); i++) {
+- if (AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani) {
++ if (use_new_ani(ah)) {
+ ah->ani[i].ofdmTrigHigh = ATH9K_ANI_OFDM_TRIG_HIGH_NEW;
+ ah->ani[i].ofdmTrigLow = ATH9K_ANI_OFDM_TRIG_LOW_NEW;
+
+@@ -1230,7 +1235,7 @@ void ath9k_hw_ani_init(struct ath_hw *ah
+ * since we expect some ongoing maintenance on the tables, let's sanity
+ * check here default level should not modify INI setting.
+ */
+- if (AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani) {
++ if (use_new_ani(ah)) {
+ const struct ani_ofdm_level_entry *entry_ofdm;
+ const struct ani_cck_level_entry *entry_cck;
+
diff --git a/package/mac80211/patches/552-ath9k_fix_ani_listen_time.patch b/package/mac80211/patches/552-ath9k_fix_ani_listen_time.patch
new file mode 100644
index 0000000000..9d83a02263
--- /dev/null
+++ b/package/mac80211/patches/552-ath9k_fix_ani_listen_time.patch
@@ -0,0 +1,11 @@
+--- a/drivers/net/wireless/ath/ath9k/ani.c
++++ b/drivers/net/wireless/ath/ath9k/ani.c
+@@ -547,7 +547,7 @@ static u8 ath9k_hw_chan_2_clockrate_mhz(
+ if (conf_is_ht40(conf))
+ return clockrate * 2;
+
+- return clockrate * 2;
++ return clockrate;
+ }
+
+ static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah)